Lenovo ThinkPad 600E User's Reference Guide for TP 600 - Page 142

Title: C79EGMST CreationDate: 02/10/98 09:24:42 Troubleshooting Charts Problem The scrolling or Magnifying Glass function doesn't work. A number appears when you type a letter. All or some keys on the external numeric keypad do not work. All or some keys on the external keyboard do not work. Action See the General tab page in "Mouse Properties," and make sure that the PS/2 TrackPoint driver is loaded. Note: Refer to the README in the TrackPoint driver diskette for driver installation. The numeric lock function is on. To disable it, press and hold Shift; then press NumLk. Make sure that the external numeric keypad is correctly connected to the computer. To use an external keyboard, you need to attach the keyboard/mouse cable to the computer. Make sure that: The keyboard/mouse cable is correctly connected to the computer. The keyboard cable is connected to the correct side of the keyboard/mouse cable. If these items are correct, disconnect the keyboard/mouse cable from the computer and make sure that the operation of the system keyboard is correct. If the system keyboard works, have the keyboard/mouse cable or the external keyboard serviced. Suspend or Hibernation Problems Problem The computer enters suspend mode automatically. Performance degrades when the computer gets hot during use. The computer enters suspend mode immediately after POST (the suspend indicator turns on). Action The computer enters suspend mode automatically when the processor temperature reaches a certain level. This is not a defect. The processor speed might decrease under the following conditions: Use in a hot environment High-powered processing that requires high-power consumption This is not a defect. Make sure that: The battery pack is charged. The operating temperature is within the acceptable range. Refer to Appendix A, "Features and Specifications" on page 165. If these items are correct, have the computer serviced. 124 IBM ThinkPad 600 User's Reference